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- The experience of recent years shows that server certificates are requested the most.
Do not know what type of server certificate you need? Opt for Unified Communications .
- DigiCert provides five type of server certificates. The first (EV Multi-Domain), third (Unified Communication) and fifth (Wildcard Plus) variant in order.
If you are ever tempted to apply for SSL Plus choose instead anyway rather Unified Communications and instead EV SSL PLus prefer EV Multi Domain.
![](https://wiki.surfnet.nl/download/attachments/48890237/2015-02-10_213911.png?version=3&modificationDate=1423602527951&api=v2&effects=drop-shadow)
- Eschew the second (EVSSL Plus) and fourth (SSL Plus) versions. The SSL Plus versions do not support Subject Alternative Names, nor 4096 bit keys.
- Unified Communications reports that 25 Subject Alternative Ames are possible. There are many more hundred has been successfully tested. Comodo could contain a Unified Communications certificate wildcards; by DigiCert can not unfortunately. There is asked DigiCert or that may in the future. On that question, during the migration period will almost certainly get no answer.
- The WildCard Plus variant unfortunately has no free choice Subject Alternative Names. They are limited to one Common Name (* .an.example.nl) but the corresponding non-wild domain (an.example.nl) will be included in the certificate.
- Make moderately Extended Validation certificates. Well for your important public Web sites, not for server-server connections that never see a man or for testing. Choose a policy that does justice to the terms of use .